Spring structure.



J. G. VENN.

SPRlNG STRUCTURE.

APPLICATION FILED owe. 1915.

1,213,980. Patented Jan.30,1917.

r im En f sfrarss PATENT cerros.

TGHN G. VENIR?, 0F JACKSON, MICHIGAN, `ASSGINOB T0 JACKSON CUSHION ZPBHQ'LL y GOMPANYpOF JACKSON, MICHIGAN.:

SPRING STRUCTURE.

epecmeation of Letters raient.

Application filed December 8, 1915.* Serial No. 65,809.

citizen of the United States, residing at Jackson, in the county Jackson and State 5 of Michigan, have invented certain new and useful lmprovements in Spring Structures,

o?? which the following' is a specification.

This invention relates to spring structures.

One object is tof/provide a base 'frame for Asjjaring structures yto which spring supportmay be readily Secured. v

Another object resides in the provision of a base frame for spring structures provided with a plurality of apertures through which suitable fastenings may be passed for the purpose of securing the llower edges of the` side facing of the upholstered covering to the base frame. y 1

With the above and other objects in, view, the present invention consists in the conibinationand arrangement of parts hereinafter more 'fullyy described,i illustrated in the acccmpanying drawings, and particularly pointed out in the appended claim, it being understood that changes may be made in tbe 'fo1n1,size,lproport1on and minor details ing Wires and upholstered covering acings' lt isniminaterial, however, as to how thesupporting VWires are secured to thebase frame.

Springs l() are secured to the spring supporting Wires 9 in any suitable manner, preferably by means of clips 11, with the border springs lia-ving an upper frame or edge Wire l2 secured thereto by means of suitable clips 13 or` in any other suitable manner, the

- frames being both of substantially the same size.

The spring structure above described is produced as an article 'of manufacture which Patented Jan. 3o, 1917.

`|is later upholstered in various Ways in the y saine place wherenianufactured or 1n some Without departing from the spirit4 or sac rilicinganylof the advantages of the invenw tiono i..

ln tlie\ irawings: Figure l is a transverse sectional View from side to side. Fig. 2 is an inverted plan view of a spring structure illustrating my invention with the springs ci the structure removed. Fig. 3 is a detail perspective vienvv of a portion oi the base traine. lli@ l is a detail perspective view of one ci the fastenings.

lerring new more particularly to the accompanying drawings the base :traine A may 'be ol? any suitable form. As shown, it consists of a eontinous side flange portion 5 leaving a plurality of apertures 6 and a continuous bottoni flange portion 7, there beingl formed a continuous internal groove 8 at the junctureof the side and bottomllanges 5 7 to receive the ends of the/spring 'rorting wires 9 which may be secured ii jy e groove 8 by deliectingr, bending or manipulating-tbe inner edges e oo n llange Z to cause the saine inbe upset for the purpose oi over ng time ends ol the spring supporting :s clearly shown the drawings Alti other place to which the same may have been transported. The upholstering process under some methods consumes considerable time and has not ,always been satisfactory. ln any event,4it is the practice to first build the spring structure and later upholster the saine, either at the place of manufacture of the spring structure or at some other place. To thisend, l provide a spring structure to which the upholstered covering may beraadily secured either at the place of rnanufao ture of the .spring structure or at some other place, as may be desired.

Asfoli the upholstering material, the seat portion "lll may be of any suitable material and 'has eine facings l5 secured thereto. The side lacings preferably have their lower edges overlapped, as indicated at 16 to reinforcextlie lower edges and the lower overlapped edges are secured together by a seam to further reinforce the same. The up bolstered covering thus formed, that is, in-

cluding 'the seat portion and the side fac- Y ings, is slipped over the spring structure until the loafer reinforced edges of the side :facings are brought into overlapping relation with the said flange portions 5 of the base frame, covering the aforesaid apertures 6 in Athe continuous side liange ol the base frame.

To electually secure the lower edge of the side facings to the base frame, l preferably employ suitable iiastenings 18 of a peculiar and which are adapted to pierce the 'facings immediately above the aforesaid l? and pass 'through the aforesaid apertures G in the base frame. These fastenings .may be el any suitable character but, as shown, they may be each formed of a sinm glo piece ci' sheet metal B and bent to pro vide a square or other head i9 and two prongs 20, each of which may have its lovxferedge bifurcated to form sharp points 21 to facilitate passing of the fastenings B through the upholstered material and when the fastenings have been passed through the upliolstering material above said seam and `through said apertures 6 in the base frame, the prongs 2O may be readily and quickly bent back against the inner face of the continuous side flange of the base frame.

I double the material of the lower edge of the facings at their lower edges and seam the same to reinforce the material so as to avoid possibility of accidental tearing of 1 the facings at the points Where the fastenings B pierce the same. 'Io further obviate possibility of tearing I preferably pass the prongs 20 of the fastenings through the fac ings above the seam.

What is claimed is A spring structure comprising a base frame composed of a strip of .material inthe inner faces. of the heads of the fasten- 1 ings binding the skirt against the upstanding flange of the base strip.

In testimony whereof I allix my signature in the presence of two Witnesses.

JOHN G. VENN. Witnesses:

R. L. Wrncox, IV. R. SMITH 

